import java.util.Scanner;
public class Example3_4 {
  public static void main(String args []) {
   int number = 0;
   System.out.println("输入正整数（回车确认）");
   Scanner reader = new Scanner(System.in);
   number = reader.nextInt();
   switch(number) {
   case 9 :
   case 131 :
   case 12 : System.out.println(number+"是三等奖");
             break;
   case 209 :
   case 596 :
   case 27 : System.out.println(number+"是二等奖");
            break;
   case 875:
   case 316:
   case 59:  System.out.println(number+"是一等奖");   
             break;
   default: System.out.println(number+"未中奖");
}
}
}

